Music-leaf turner.



J. HAVLINA.

MUSIC LEAP TURNER.

APPLICATION FILED APR. 25,1908.

Patented Nov. 3, 1903.

WAIIIIN JOSEPH HAVLINA, OF RAOINE, WISCONSIN.

MUSIC-LE AF TURNER.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed April 25, 1908. Serial No. 429,239.

To all whom it may concern:

Be it known that I, Josnrn IIAVLINA, a citizen of the United States, residing at Racine, in the county of Racine and State of \Visemisin. have invented a new and useful Music-Leaf Turner, of which the following is a specification.

This invention relates to music leaf turncrs and its object is to provide a device of this character which is simple, durable and efficient, and which is formed of comparatively few parts so that it will not readily get out of order.

Another object is to provide a leaf turner which can be operated either by hand or by a treadle.

Another object is to provide a leaf turner the arms of which are positively shifted without the use of springs and other tension devices.

A further object is to provide simple means whereby only a single leaf can be turned at one operation.

lYith these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a front elevation of the music leaf turner applied to a music rack, the rack being shown partly folded or collapsed. Fig. 2 is a section on line A B, Fig. 1, the clips of the arms being'shown in plan. Fig. 3 is a section on line CD, Fig. 1.

Referring to the figures by characters of reference, 1 designates the bottom strip of a music rack, the same being provided at its ends with foldable links 2 pivotally connected tn a. top strip 3 whereby the rack can be extended or folded in the usual manner. Arranged lon itudinally upon the strip 1 is a supporting edge 4 on which the music is designed to rest and disposed below this ledge and parallel with it is a flange 5. A pivot pin 6 connects the middle portions of the flange 5 and ledge 4 and mounted on this pin is a series of superposed arms 7, 8 and 9 each provided at its outer or free end with an upstanding finger 10 on which a sprin clip 11 of any desired form is secure Arms 7, S and 9 are of difi'erent lengths the shortest arm being arranged at the top While the longest one is located at the bottom so that when the fingers 10 are in their normal positions against the front edge of ledge 4 they will be located parallel but with their upper ends in the same horizontal plane. Each arm has an extension 12 at the pivot end thereof, said extension projecting inwardly and into the path of a shoulder 13 formed upon the lower face of a. push bar 14. This push bar is mounted loosely upon one end of a lever 15 journalcd between the ledge 4 and the flange 5 preferably at the left ends thereof and a finger piece 16 extends from the outer end of lever 15 and preferably at right angles thereto so that by pressing against this finger piece the lever 15 can be swung toward the right for the purpose hereinafter set forth. A spring 17 is connected to the lever 15 and also to the flange 5 and serves to hold said lever and the finger piece normally in predetermined positions. A cord or other flexible device 18'is fastened to the finger piece and extends through an openin 19 in strip 1 and this cord may be attached to a suitable treadle, not shown, so that. if preferred the lever can be operated by a pressure of the foot upon the treadle. The inner or free end of the push bar 14 rests upon the extension 12 as clearly shown in Fl 's. 1 and 2. A lifting device in the form 0 a lever 20 is fulcrumed upon the flange 5 below the bar 14 and one end of this lever projects beyond the front edge of the flange so that it can be readily depressed for the purpose of lifting the bar 14.

When it is desired to use this device the leaves of music are placed upon the ledge 4 in the usual manner and the first leaf to be turned is inserted between the finger 10 and clip 11 of arm 7 while the second leaf to be turned is similarly connected to arm 8 and the third leaf to arm 9. The bar 14 rests upon the extension 12 and the shoulder 13 and assumes a position to the left of the upper extension. When it is desired to turn the first leaf the lever 15 is actuated either by pushing the finger piece 16 inwardly or by pulling downwardly on the cord 18. This will result in a lon itudinal movement of bar 14 and the shou der 13 thereon will be brought violently against the extension 12 of the upper arm 7, and said arm will also be swung upon the pivot pin 6 until its finger 10 and clip 11 are brought against the eft portion of the ledge 4. The leaf will thus be turned and as soon as lever 15 is released its spring 17 will return it to its initial position whereupon the bar 14 will drop onto the extension 12 of the next bar 8 and shoulder 13 will assume a position to the left of the extension 12 on said arm. hen the foregoing operation is repeated arm 8 will. be swung to the left and the parts will then be automatically set so as to swing the arm 9 during the next operation of the parts. The bar 14 is permitted to automatically assume its position upon the extensions of the arms 7, 8 and 9 successively because it is loosely connected to the lever 15 and is capable of swinging downward by gravity. After all of the arms have been swung to the left in the manner described the bar 14 will assume a position upon the flange 5 and when it is desired to return the arms to their initial positions the operator pushes downward on the projecting end of lever 20 so that the inner end of said lever will elevate the bar 14 whereupon the arms 7, 8 and 9 can be swung to the right and the bar 14 permitted to rest upon the upper extension 12. Although the device has been shown as constituting a part of an ordinary music rack it is to be understood that the same can, if desired, be attached to the music rack of a piano or organ or can be mounted in any other desired manner.

What is claimed is:

1. The combination with superposed pivoted leaf engaging arms, and extensions upon the arms; of a push bar normally bearing upon one of the extensions, means for reciprocating the bar, means upon the bar for engaging and actuating the extension upon which it bears, said bar being movable by gravity onto the respective extensions, and means for lifting the push bar.

2. The combination with pivoted superposed leaf engaging arms, and extensions thereon; of an actuating lever, means for holding the same normally in a predetermined position, a push bar loosely connected to said lever and hearing by gravity upon one of the extensions, means upon "the push bar for engaging and shifting the extension upon. which it bears, said bar being movable by gravity into engagement with the respective extensions successively, and means for lifting the push bar relatively to the extensions.

In testimony that I claim the foregoing as my own, I have hereunto afiixed my signature in the presence of two witnesses.

JOSEPH HAVLI NA. Witnesses WV. J. J ANDL, ALBERT A. RYBA. 

